CN217053174U - Sidewalk safety isolation facility for tunnel - Google Patents
Sidewalk safety isolation facility for tunnel Download PDFInfo
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- CN217053174U CN217053174U CN202123320492.7U CN202123320492U CN217053174U CN 217053174 U CN217053174 U CN 217053174U CN 202123320492 U CN202123320492 U CN 202123320492U CN 217053174 U CN217053174 U CN 217053174U
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Abstract
The utility model provides a pavement safety isolation facility for tunnel, including set up in the tunnel and along the rail guard that the tunnel extends the direction extension, the side of rail guard towards pavement one side is first vertical face, first vertical face perpendicular to rail guard bottom surface and upwards extend to the top of rail guard, the side of rail guard towards pavement one side is formed with the collision protection face, the collision protection face sets gradually to second vertical face, first inclined plane and second inclined plane; the second vertical surface is perpendicular to the bottom surface of the protective guard and extends upwards for a first preset height, the first inclined surface extends upwards for a second preset height from the top of the second vertical surface towards the first vertical surface, and the second inclined surface extends upwards to the top of the protective guard from the top of the second inclined surface towards the first vertical surface, so that the first vertical surface, the second vertical surface, the first inclined surface and the second inclined surface form a cross section in an F shape together, the safety of pedestrians in the tunnel is guaranteed, and the tunnel is simple in structure, stable and reliable.
Description
Technical Field
The utility model relates to a tunnel and underground works technical field especially relate to a pavement safety isolation facility for tunnel.
Background
With the development and expansion of cities, people flow and vehicle flow in the core area of the urban area are gradually dense, roads are gradually congested, and particularly the peak time periods in the morning and the evening are more obvious. Because the road network structure of most urban roads adopts a ground plane intersection mode to organize the traffic flow of two intersected roads in the early development stage, the traffic capacity is relatively limited, and in the development process of a city from small to large, a part of plane intersection needs to be changed into solid intersection. One of the three-dimensional crossing modes is realized by adopting a tunnel, and if the tunnel is a part of a main road or a secondary road, a sidewalk needs to be considered.
When the length of the urban tunnel is more than 1000m, CO and NO of the urban tunnel x The concentration of pollutants in the tunnel exceeds the standard frequently, and the harmful gases can cause harm to human bodies, so that the tunnel with the depth of more than 1km cannot be provided with sidewalks. In the case of a medium-short tunnel with a length of less than 1000m, a sidewalk is generally considered to be convenient for pedestrians to pass through obstacles. In order to save the engineering investment, sidewalks are required to be arranged on one side or two sides of a roadway in the same hole of the tunnel under many conditions, and most of the sidewalks are arranged on one side in order to save the engineering investment.
However, the driving sight line in the tunnel is poor under the general condition, especially, there is an obstacle to the identification of the object in front by the driver when the driver enters or exits the tunnel portal, and in order to ensure the safety of the pedestrian, a safety isolation facility needs to be arranged at the edge of the sidewalk, and the existing tunnel safety isolation facility lacks a unified standard, is simple and crude in manufacture and is difficult to ensure the safety of the pedestrian.
In view of the above, it is necessary to provide a sidewalk safety isolation facility for a tunnel to solve the above problems.
SUMMERY OF THE UTILITY MODEL
A primary object of the utility model is to provide a pavement safety isolation facility for tunnel to solve the problem that current tunnel safety isolation facility lacks unified standard, makes simplely crude, is difficult to guarantee pedestrian's safety.
In order to achieve the above object, the present invention provides a sidewalk safety isolation facility for a tunnel, comprising a guard rail disposed in the tunnel and extending along the extending direction of the tunnel, wherein the guard rail divides the tunnel pavement into a sidewalk and a traffic lane; wherein the content of the first and second substances,
the side surface of the guard rail, facing one side of the sidewalk, is a first vertical surface, and the first vertical surface is perpendicular to the bottom surface of the guard rail and extends upwards to the top of the guard rail;
a collision protection surface is formed on the side surface of the protective guard facing the traffic lane, and a second vertical surface, a first inclined surface and a second inclined surface are sequentially arranged on the collision protection surface from the bottom surface of the protective guard to the top surface of the protective guard; the second vertical surface is perpendicular to the bottom surface of the guard rail and extends upwards for a first preset height, the first inclined surface extends upwards from the top of the second vertical surface towards the first vertical surface for a second preset height, and the second inclined surface extends upwards from the top of the second inclined surface towards the first vertical surface towards the top of the guard rail, so that the first vertical surface, the second vertical surface, the first inclined surface and the second inclined surface form an F-shaped cross section together.
Preferably, a facility belt is disposed between the sidewalk and the traffic lane, and a thickness of a bottom of the guard rail is smaller than a width of the facility belt, so that the guard rail is disposed within the facility belt.
Preferably, the slope of the first slope is smaller than the slope of the second slope.
Preferably, the guard rail comprises a concrete anti-collision wall fixed on the tunnel pavement, and an isolation guard rail fixed on the top of the concrete anti-collision wall; the isolation guardrail comprises a steel structure base and a steel pipe fixed at the top of the steel structure base, and the steel structure base is fixedly connected with the top of the concrete anti-collision wall.
Preferably, the elevation of the sidewalk relative to the traffic lane is d 1 Wherein d is 1 Not less than 25 cm; the height of the concrete anti-collision wall is h 0 Wherein h is 0 1 m; height d of the isolation barrier g Wherein d is g ≥0.9-(h 0 -d 1 )。
Preferably, the inclination of the first inclined plane is set between 1.0 and 1.8, and the inclination of the second inclined plane is set between 8.0 and 11.0.
Compared with the prior art, the utility model provides a pavement safety isolation facility for tunnel has following beneficial effect:
the utility model provides a pavement safety isolation facility for tunnel, through designing the side of rail guard towards pavement one side as the first vertical face, the side of rail guard towards lane one side is designed as collision protection face, collision protection face sets gradually as second vertical face, first inclined plane and second inclined plane; the second vertical face is perpendicular to the bottom face of the guardrail and extends upwards for a first preset height, the first inclined face extends upwards for a second preset height from the top of the second vertical face towards the first vertical face, and the second inclined face extends upwards to the top of the guardrail from the top of the second inclined face towards the first vertical face, so that the first vertical face, the second vertical face, the first inclined face and the second inclined face jointly form a cross section in an F shape, the shock absorption and energy absorption effects are good, and the safety of pedestrians in the tunnel is guaranteed. In addition, through the form of designing the rail guard for concrete anticollision wall + steel construction base + steel pipe, improved structural strength by a wide margin, effectively prevent that the pedestrian from turning over, simple structure, reliable and stable.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the system shown in the drawings without creative efforts.
Fig. 1 is a schematic view of a tunnel boundary with a sidewalk attached to one side of the tunnel boundary in an embodiment of the present invention;
fig. 2 is a schematic view of a guard rail according to an embodiment of the present invention.
The purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.
The reference numbers indicate:
100. a tunnel; 110. protecting a fence; 120. sidewalks; 130. a traffic lane; 140. a first vertical face; 150. a collision protection surface; 151. a second vertical face; 152. a first inclined plane; 153. a second inclined surface; 160. A concrete anti-collision wall; 170. isolating the guardrails; 171. a steel structure base; 172. a steel pipe; 180. building boundary lines.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, a sidewalk safety isolation facility for a tunnel includes a guard rail 110 disposed in a tunnel 100 and extending along a direction in which the tunnel 100 extends, wherein the guard rail 110 divides a pavement of the tunnel 100 into a sidewalk 120 and a traffic lane 130; wherein the content of the first and second substances,
the side surface of the guard rail 110 facing the side of the sidewalk 120 is a first vertical surface 140, and the first vertical surface 140 is perpendicular to the bottom surface of the guard rail 110 and extends upwards to the top of the guard rail 110;
a collision protection surface 150 is formed on a side surface of the guard rail 110 facing the traffic lane 130, and the collision protection surface 150 is provided with a second vertical surface 151, a first inclined surface 152 and a second inclined surface 153 in sequence from the bottom surface of the guard rail 110 to the top surface of the guard rail 110; the second vertical surface 151 is perpendicular to the bottom surface of the guard rail 110 and extends upward by a first preset height, the first inclined surface 152 extends obliquely upward from the top of the second vertical surface 151 toward the first vertical surface 140 by a second preset height, and the second inclined surface 153 extends obliquely upward from the top of the second inclined surface 153 toward the first vertical surface 140 to the top of the guard rail 110, so that the first vertical surface 140, the second vertical surface 151, the first inclined surface 152, and the second inclined surface 153 together form an F-shaped cross section.
It will be appreciated by those skilled in the art that the traffic flow in the urban tunnel 100 is high and the accident rate is relatively high due to the narrow space in the tunnel 100. Most accidents are caused by the collision of vehicles against the curb stones on both sides of the road or the side walls of the sidewalk 120, and the safety isolation facilities are required to be provided in the form of rigid guard rails 110, for example, non-deformable concrete collision walls 160, in order to ensure the safety of pedestrians due to the limited deformation space of the safety isolation facilities after the collision.
The existing collision test shows that the energy absorption effect of the F-shaped guardrail is better, so that the section of the safety isolation facility in the form is adopted on the side facing the lane, namely the collision protection surface 150 adopts the section in the form, and the height of the protective guardrail 110 is not less than 1 m. As a specific example, the height of the first vertical surface 140 is set to 1000mm, the first preset height of the second vertical surface 151 is set to 75mm, the first preset height of the first inclined surface 152 is set to 180mm, the slope is set to 1.44, the height of the second inclined surface 153 is set to 745mm, and the slope is set to 9.6. It is understood that, in other embodiments, the above values can be set according to actual needs. The guard rail 110 with the structure can greatly ensure the safety of pedestrians in the tunnel 100, and has a simple, stable and reliable structure.
As a preferred embodiment of the present invention, a facility belt (not shown) is disposed between the sidewalk 120 and the traffic lane 130, and the thickness of the bottom of the guard rail 110 is smaller than the width of the facility belt, so that the guard rail 110 is disposed in the facility belt. Generally, the width of the facility tape is greater than the thickness of the bottom of the guard rail 110 by 0.1m to provide a margin for installation error.
As a preferred embodiment of the present invention, the slope of the first inclined surface 152 is smaller than the slope of the second inclined surface 153. The slope of the first slope 152 is set to be smaller than the slope of the second slope 153, so that the shock absorption and energy absorption effects can be improved more, and of course, the slope of the first slope 152 can also be set to be larger than the slope of the second slope 153, and meanwhile, the good shock absorption and energy absorption effects can also be achieved by adjusting the height relationship between the first slope 152 and the second slope.
As a preferred embodiment of the present invention, the guard rail 110 includes a concrete crash wall 160 fixed to the pavement of the tunnel 100, and an isolation guard rail 170 fixed to the top of the concrete crash wall 160; the isolation guardrail 170 comprises a steel structure base 171 and a steel pipe 172 fixed to the top of the steel structure base 171, wherein the steel structure base 171 is fixedly connected with the top of the concrete anti-collision wall 160. It should be noted that, in order to improve the safety isolation effect of the protective guard 110, prevent pedestrians from crossing over, and improve the overall structural strength, the protective guard 110 in this embodiment adopts a combination form of the concrete anti-collision wall 160, the steel structure base 171, and the steel pipe 172, wherein the fixed connection manner between the concrete anti-collision wall 160 and the ground may be a connection by a fastener, and may adopt a casting manner, and the fixed connection manner between the steel structure base 171 and the anti-collision concrete is also not limited to a connection by an anchoring member, for example, may also be a connection by an expansion bolt, and may specifically set the actual requirements.
Further, the elevation of the sidewalk 120 relative to the traffic lane 130 is d 1 Wherein d is 1 Not less than 25 cm; the height of the concrete anti-collision wall 160 is h 0 Wherein h is 0 More than or equal to 1 m; height d of the isolation barrier 170 g Wherein d is g Not less than 0.9- (h0-d 1). Referring again to FIG. 1, the dashed line is the architectural boundary 180, and for reference purposes, it will be understood by those skilled in the art that the sidewalk 120 generally extends from the outside of the tunnel 100, the sidewalk 120 generally extends at least 15cm above the roadway 130 outside of the tunnel 100, and the sidewalk 120 generally extends at least 25cm above the roadway 130 within the tunnel 100, i.e., d 1 The height of the pedestrian is more than or equal to 25cm, so that the safety coefficient of pedestrians is improved. Since the sidewalk 120 needs to be considered to prevent the pedestrian from crossing, the overall height of the guard rail 110 should be at least 0.9m or more, and in order to ensure that the height requirement can be met, the height of the concrete anti-collision wall 160 needs to be set at least 0.9- (h) 0 -d 1 ) The isolation barrier 170. For example, in one embodiment, the height of the sidewalk 120 is 0.25m and the height of the concrete impact wall 160 is 1m, and the height of the concrete impact wall 160 is set as follows: 0.9- (1-0.25) ═ 0.15m of the isolation barrier 170.
Further, the inclination of the first inclined plane is set to be between 1.0 and 1.8, and the inclination of the second inclined plane is set to be between 8.0 and 11.0. It is understood that, in other embodiments, the specific values of the first slope and the second slope may also be set according to actual needs.
The above is only the preferred embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent systems or equivalent processes that are made by using the contents of the specification and the drawings of the present invention can be directly or indirectly applied to other related technical fields, and all the same are included in the patent protection scope of the present invention.
Claims (6)
1. A safety isolation facility for a sidewalk of a tunnel is characterized by comprising a guard rail, a safety isolation device and a safety isolation device, wherein the guard rail is arranged in the tunnel and extends along the extending direction of the tunnel, and divides the tunnel pavement into the sidewalk and a traffic lane; wherein, the first and the second end of the pipe are connected with each other,
the side surface, facing the sidewalk, of the guard rail is a first vertical surface, and the first vertical surface is perpendicular to the bottom surface of the guard rail and extends upwards to the top of the guard rail;
a collision protection surface is formed on the side face, facing the traffic lane, of the guard rail, and a second vertical surface, a first inclined surface and a second inclined surface are sequentially formed on the collision protection surface from the bottom face of the guard rail to the top face of the guard rail; the second vertical surface is perpendicular to the bottom surface of the guard rail and extends upwards for a first preset height, the first inclined surface extends upwards from the top of the second vertical surface towards the first vertical surface for a second preset height, and the second inclined surface extends upwards from the top of the second inclined surface towards the first vertical surface towards the top of the guard rail, so that the first vertical surface, the second vertical surface, the first inclined surface and the second inclined surface form an F-shaped cross section together.
2. A sidewalk safety isolation facility for a tunnel according to claim 1, wherein a facility strip is disposed between the sidewalk and the traffic lane, and a thickness of the bottom of the guard rail is less than a width of the facility strip so that the guard rail is disposed within the facility strip.
3. A manway safety isolation facility for tunnels according to claim 2, wherein the slope of the first slope is less than the slope of the second slope.
4. A sidewalk safety isolation facility for a tunnel according to claim 3, wherein the guard rail comprises a concrete collision-prevention wall fixed to the tunnel pavement, an isolation guard rail fixed to the top of the concrete collision-prevention wall; the isolation guardrail comprises a steel structure base and a steel pipe fixed at the top of the steel structure base, and the steel structure base is fixedly connected with the top of the concrete anti-collision wall.
5. A walkway safety isolation installation for tunnels according to claim 4, wherein the elevation of the walkway relative to the roadway is d 1 Wherein d is 1 Not less than 25 cm; the height of the concrete anti-collision wall is h 0 Wherein h is 0 More than or equal to 1 m; the height of the isolation guardrail is d g Wherein d is g ≥0.9-(h 0 -d 1 )。
6. A sidewalk safety isolation facility for a tunnel according to claim 3, wherein the slope of the first slope is set between 1.0-1.8, and the slope of the second slope is set between 8.0-11.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123320492.7U CN217053174U (en) | 2021-12-27 | 2021-12-27 | Sidewalk safety isolation facility for tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123320492.7U CN217053174U (en) | 2021-12-27 | 2021-12-27 | Sidewalk safety isolation facility for tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217053174U true CN217053174U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123320492.7U Active CN217053174U (en) | 2021-12-27 | 2021-12-27 | Sidewalk safety isolation facility for tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217053174U (en) |
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2021
- 2021-12-27 CN CN202123320492.7U patent/CN217053174U/en active Active
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